Welding-torch.



W. N. BELL.

WELDING TORCH.

APPLICATION FILED JULY 2, 1914.

Patented Dec. 15, 1914.

WILLIAIM 1m. BELL, or onn rrnnooon, 'rnnn'nssnm To all whom, it ma concern: '2 1 Be it known t at'I, WILLIAM N.;-BELL,

\ a citizen of the United States residing at Chattanooga, in thecounty of I-ia'milto'n and State of Tennessee, have invented new anduseful Improvements in Welding-Torches,

' of which the followingisa specification.

The present invention has reference; to

-We1ding torches, and its-proposes an improved implementof that general class or .character having certain herepafter-described improvements in or rela ng to' the construction of its head and nozz e, and the mounting of the latter in the said head, whereby the nozzle may be set at any desired angle to the body of the implement, for the purpose of directing the flame toward the work. L

It also comprehends certain further im rovements, likewise fully explained here-" inafter; in connection with the construction of the handle, that element being designed for sliding movement longitudinally of the gas-supply pipes toward and from the head, so as to enable the hand of. the operator to be brought closer to or farther away from said head, and the instrument itself shifted toward or from the work when used in connection with a vise or other clamp.

I An embodiment of the invention is illustrj'fated in the accompanying drawing, whereo v Figures 1 and 2 are plan and side views,

respectively, of the improved torch; Fig. 3 is a transverse section on line 3-3, Fig. 1;

Figsa i and 5 are enlarged longitudinal sections taken on the lines 44 and55, Fig.

1, respectively; Figs. 6 and 7 are'outer and inner face "vlews, respectively, of one of the fixed members of the head; Figs. 8 and 9 are opposite face views of the movable member of the head; Fig. 10 is a frontend view of the said movable member; and .Fig. 11 is a rear end "iew of the nozzle.

The torch has been shown in the said drawing as designed for use in connection with oxygen and acetylene, and will be so described in the matter following, but it is to be understood that in place of the gases s ecified, other suitable gases may be used, i preferred, so that no limitation to such gases is contemplated. I

Referring more particularly to said drawing, 15 and 16 indicate, respectively, the oxygen and acetylene supply pipes of the imwnLnINe-"roncn. I

Specification of Letters Patent? Pate td Dec, 15, 1514.

Application filed m a; 1914: Serial m's raesz.

pipes.

- The ,pipes 15 and 16, which may be-of any plement, 17 the handle 'slidabl'e thereon,18

desired dimensions, are fitted at their rear ends in a air of tubular extensions 21 'formed on t e body 22 of the device 20, and are held in Iplace by meansof a pair of capnuts 23 in t e manner depicted in Fig. 5,-the

said body being further provided, at the opposite side thereof'from the extensions: 21, with a pair of nipples 24, adapted for connection with theusual flexible hose, (not shown), which deliver thegases thereto from the main sources of supply. The two pairs of extensions and nipples are connected by passages 25, the angularly offset cen-. tr'al portions of "which lead transversely through the body 22 adjacent the ends thereof, the flow of the ases through these passages being controlla le at the will of the operator, preferably through the agency of suitable needle valves 26, whose stems are threaded in nipples 27 provided on said body and are held in place by cap-nuts 28. v

The bores of. the nipples 27 are extended in? the angles of the central portions of the passages 25 and receive the inner portions of the valve stems in the usual manner.

The front ends of the pipes 15 and 16 are connected to the head, 18 of the implement, as shown in Figs. 1 and 2, and in the construction illustrated, which may, for present purposes, be considered as preferred, the said head consists of relatively-fixed outer members 29 and 30, and an intermediate movable member'31. The members 29 and 30 consist of flat, disk-like body portions 29' and 30, and hollow, tangential, stems 29 and 30 the said body portions being provided with central openings 29 and 30 through which, and through a registering opening 31*" formed'centrally of the s milarly-shaped body portion31 of the inter-- mediate member 31, passes the stem of a removable connecting bolt 32. The body portions of the fixed members 29 and 30 are disposed in spaced, parallel relation, as represented in Figs. 2 and 4, and receive beturned or rotated in either directiorf. To

- annular passages 37 and 39,, irrespective ofwith 'a thumb-nut 33, the head or retain the said movable member in adjusted position, the projectingterminal portion of the bolt stein is threaded, and is e uippexjlf ase 0 which is adapted to frictionally engage a washer 34- through which the bolt .stem also passes, the said washer resting upon the outer face of the member 29. r

The aforementioned endsof the pipes 15 and 16 are fitted in the interiorly-threaded ends of the stems 29 and 30, respectively, which latter havetheir bores communicatin with internal passages and 36 that lea through the body portionsof the members 29 and 30 and open laterally at their inner ends into annular passages 37 and 38 formed in the inner faces of said body portions, as depicted in Figs. 6 and 7. The opppsite faces of the body portion 31" pf themember 31 are likewise provided with annular passages, indicated by the numerals 39 and 40, which register, respectively, with the passages 37 and 38, and the stem 31 of this m'eniberis formed with a pair of passages 41 and 42, having deflected inner ends which open, respectively, into the said passages 39 and 40, the passage 42 having a slightly 1 greater diameter than the passage 41. and

being located axially ,of said stem, while the said passage 41 is located to one side of such axis and opens at its outer end into an annular passage 43.'- The passages 39 and 40 are formed in'raised, annular shoulders 39' and 40'. a

.In consequence of the particular construction and arrangement of the various passages, as above described, communioation is always provided between the two passages 35 and 41 by means of the two registering th position of the movable member 31 relat1ve to'the fixed members '29 and 30; and,

similarly between the. two passages 36 and 42-bymeans of the registering annular passages 38 andv 40, all of the'said annular fpassages having the same diameter. Ac-

.through the outlet passages 41. and

cordingly, the oxygen, which flows through pipe 15 into passage 35, and thence into passages 37 and 39, will always be free to flow from the last-named passage into alrd while, in-like-manner,' the acetylene will into passages 38 and 40, and finally into and'thr oughits outlet passage42.

' The nozzle 19 of the implement is detachably secured directly to the stem 31 of the .movable-head member 31, and is here shown as constituted'by a tapered tube provided at its rear end with a circumferential flange 719', which is clamped against the threaded,

stem end by'a cap-nut 44. The axial bore 45; of the nozzle registers with the passage 4 42, and is formed adjacent its rear end with a series of short, inclined vbranch}passages 46 that lead outwardly therefrom and openinto an annular assage 47 formed in the rear end face of t e sald nozzle in registra tion with the annular passage 43 in. the 0 end face of stem 31*. The acetylene thus flows frompassage 42 into the bore or pas 'sage45, while the oxygen flows from passage 41 into passage43, as previously stated,

and thence through the branch passages 46 5 into passage 45, where it mixes with the acetylene, communication between" the passages 41, 46 and 45 being insured for all positions of the nozzle owing to the formation of the registering annular passages 3 sides 'of the supply pipes 15 and 16, and 35 ,are detachably clamped together against said pipes in any suitable manner, as, for

example, by means of a screw 48, (Figs.

1 and 3), the end. members of the said sections being provided with mating seats 17 1 wherein the pipes are received. This arrangement, as will be understood, enables the handle to be shifted bodily in either di rection along the pipes, after the clamping screw 48 has been loosened, and to be there.-

after retained in adjusted position by merely tightening said screw.

The entire invention, its operation and its advantages, are believedto be apparent from the foregoing, and, hence, to require 1o no further description or I claim J 1 1. In a welding torch, the combination,

explanation. I

'with a pair of gas supply pipes; of a head embodying a pair of juxtapo'sed, hollow, 10

structurally-separate, fixed members to which ,the forward ends of said pipes are attached, and a single, hollow member disposed directly between and movable '-rela tively to the fixed members and in con- 1] stant communication with the same, said "fixed and movable members having intercommunicating gas passages; anda nozzle attached to said movable member and having'its'bore communicating with the interior 1 thereof. i

2. In a, welding torch, the combination of a head comprising a pair of separate, fixed members having disk-likeihollow body portions arranged in juxtaposed relation 12 and hollow stems connected to said bodies, and a movable member having a disk-like hollowbody interposed between and communicating with the bodies of said fixed members; gas-supply means attached to the 121;

stems ofsaid fixed members; and a nozzle attached to said movable member and in communication therewith.

' 3. In a welding torch, the combination 0 gas-supply pipes; a head attached thereto;.1

' a nozzle rotatably connected with said head;

means for clamping said sections together.

5. In a Welding torch, the combination of rigid, gas-supply pipes; a head attached thereto; a nozzle attached to said head; and a handle slidable upon said pipes toward 15 and from said head, said handle comprising separable. upper and lower sections disposed upon opposite sides of said pipes, and means for clamping said sections together.

In testimony whereof I have hereunto set 20 my hand in presence of two subscribing W1tnesses.

WILLIAM N. BELL. Witnesses:

FRANK S. CosDEN, CHAS. A. STEWART. 

